ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

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Chapter 7 WAN

To change your ZyXEL device’s WAN MAC settings, click WAN, then the MAC tab.  The 
screen appears as shown.

Figure 38   MAC Setup

The MAC address screen allows users to configure the WAN port's MAC address by either 
using the factory default or cloning the MAC address from a computer on your LAN. Choose 
Factory Default to select the factory assigned default MAC Address.

Multicast

Choose None (default), IGMP-V1 or IGMP-V2. IGMP (Internet Group Multicast 

Protocol) is a network-layer protocol used to establish membership in a 

Multicast group - it is not used to carry user data. IGMP version 2 (RFC 2236) 

is an improvement over version 1 (RFC 1112) but IGMP version 1 is still in 

wide use. If you would like to read more detailed information about 

interoperability between IGMP version 2 and version 1, please see sections 4 

and 5 of RFC 2236.

Windows Networking (NetBIOS over TCP/IP): 
NetBIOS (Network Basic Input/Output System) are TCP or UDP broadcast packets that enable a 

computer to connect to and communicate with a LAN. For some dial-up services such as PPPoE or 

PPTP, NetBIOS packets cause unwanted calls. However it may sometimes be necessary to allow 

NetBIOS packets to pass through to the WAN in order to find a computer on the WAN.

Allow between WAN 

and LAN

Select this check box to forward NetBIOS packets from the LAN to the WAN 

and from the WAN to the LAN. If your firewall is enabled with the default policy 

set to block WAN to LAN traffic, you also need to enable the default WAN to 

LAN firewall rule that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to the 

WAN and from the WAN to the LAN.

Allow Trigger Dial

Select this option to allow NetBIOS packets to initiate calls.

Apply

Click Apply to save your changes back to the ZyXEL device.

Reset

Click Reset to begin configuring this screen afresh.

Table 37   WAN: IP